Steam-trap and system for draining water of condensation from steam-coils.



A P. H. GRIMM. n STEAM TRAP AND SYSTEM FOR DRAINING WATER 0FCONDENSATION FROM STEAM COILS.

APPLICATION FILED NOV.25, 1912.

Patented Nov. 18, 1913.

2 SHEETS-SHEET l.

P. H. GRIMM.

STEAM TRAP AND SYSTEM FOR DRAINING WATER 0F GONDBNSATION FROM STEAMGOILS.

APPLICATION F1LED NOV. 25,1912. 1,078,783.

Patented Nov. 18, 1913.

2 SHEETS-SHEET 2.

'a steam trap in unirsi) srafrgrs PATENT orricr.

PAUL H. GRIMM, OF GLEN COVE, NEW YORK` STEAM-mr AND SYSTEM-.ron unanimeWATER or CONDENSATION raoivi STEAM- coms.

- f Application To all who/m t may concern.'

Be it known that I, PAUL H. GRIMM, a citizen of the United States,residing at Glen Cove, in the county of Nassau and State of New York,have invented certain new and useful rImprovements in Steam-Traps andSystems for Draining Water of Condensation from Steam-Coils, of whichthefollowing is a specilication.

My invention relates to improvements in steam traps and a system ofinstalling the same for the removalof water of condensation from thesteam coils of vacuum pans or l other similar devices, where thepositive and l intermittent Withdrawal of accumulated Wal ter isrequired after the heat has been extricated from a body of steam, and atthe same l time insure no escape ot' the confined steam during suchoperations.

The object of my invention is to construct 1 which the operating piston,l cylinder, and its connected parts for controlling the outlet for theWater of condensation, can be easily inspected and repaired withoutdisturbing the other elements of the trap and at the same time themotive fluid for the operation or' the trap acts as a lubricant and isusedvover again in the closed system. Furthermore, the outlet valve ol'fthe trap is s0 arranged that the internal pressure of` the steam, andwater of condensation as it accumulates forces said outlet valve againstits seat and insures no leakage or passage of Water through the outletpipe until the required time and hence assures no Waste of steam.

A further object of the invention is to arrange the traps with theirinlets and outlets and motive fluid connections for operating the outletvalves, so that the entire system is a closed one, in which the motivefluid or l oil for operating the outlet valves, and the Water ofcondensation is used over and over again, and the motive fluid isautomatically controlled at a predetermined pressure Sullicient to givethe proper working to the oper-r ating piston on each trap.

he invention consists of structural features and relative arrangementsof the vari.-

Specfication of Letters Patent.

Patented Nov. 18, 1913.

filed Nevember 25, 1912. Serial No. 733,561.

ous elements which will be hereinafter more fullv uescribed andparticularly pointed oit in the appended claims.

. In the accompanying sheets of drawing, in which similar referencecharacters indi,- cate the same part's in the several ligure* Figure 1is a diagrammatic view showing ar arrangement or system of connecting aseries of traps according to my invention; and Fig. 2 is a verticalsection of the trap used in the system indicatedin Fig. 1.

Referring to Fig. 2, the numeral 1 repre.

sents the steam tight receptacle which is provided with a anged cover 1ahaving a vent 1b for non-condensable gases, a water of condensationinlet 2, and outlet 3, said inlet being above the outlet as shown; 4 isa slide valve controlling the outlet 8 and is connected by means of anadjustable rod 5, passing through suitable stuing boxes, to a piston 6within a motor cylinder 7, removably attached to the side of thecasing 1. A motive fluid inlet 8 connects with a chest 9, in which isprovided an oscillating valve 10 controlling the ports 11, 11 andexhaust port 12. A float 13 is provided -on the inside of the casing 1which is carried by an arm 14 connected to a rocker shaft 15, supportedin and extending through the casing, the outer end of said shalt 15having an arm lirigidly connected thereto and carrying an adjustablecounterweight 17, as shown. 18 is a link connecting the arm 1G to arm 19attached to the oscillating slide valve 10, for the purpose of conveyingthe motion of the lioat-to the said valve 10. Connected with thereceptacle inlet 2 is a pipe 20 which. leads the water of condensationto the interior of l the receptacle 1. The numeral 21 represents a drainpipe connected to outlet 3 beyond the controlling valve 4 for thepurpose of conveying the water of condensation to a common reservoir. Tothe motive iuid inlet 8 is at-tached a pipe 22 and to the exhaust 12, apipe 23 is connected for the purposes to be hereinafter more fullydescribed with relation to the system of traps shown in Fig. 1.

The operation of the trap is as follows:

l r level ism neen ilit Zin'it, .'i

it lira-tilt" Sie u: z:

pri, ire pmsingr into tonie derfn the piston and er il initier il prit(n ti to it, will he eeen troni the t'ei'eyfiinjl die,-

elosnre that nhen the teptat'le iQ, Still nearlx` whieh permit thesteani to eonie in eontir ,vitli the outlet valve Yl. Furiherinore, bythe above Construction and operation. `when the valve 4 ie actuated itis opened full and quieitlv, thus permitting the water to pans out inthe shortest pesaihle tiinand when the slide valve vi close@` it is heldto its seat by the pressure within and water in the trap, and insures aiwi-feetly tight iitr and preventv all leakage et' steam and water. Saidvalve 4 also wears iteeit to its seat 2i'. and hence inenre v no leakingand Jionltl at any tinie the seat .24 or valve fi need inepee-tien, saidseat can be removed without disturbing the valve, or adjustments. notheradvantage of niv t'orin of trap is, by having' the motive tluid foroperating the lnotoricylinder and outlet valve 4 separate andindependent et' the trap and pressure within the same, said discharge ofthe vvater Condensation always assured when the Water level reaches apreileterniined point in the trap, Whether the priifeure in the trap leptt'at() 1s high 0r low` and ineutiieient to the piston (l, and also, bv hi ving the motor cylinder 7 and piston (t en valie l (lows. the re4 ihalf full of water` arts as a water real and does natu the outside oi ithe t 'ap it ean be readily inspected without i disturbing the operationot' the taking the sante apart.

St ain traps in ordinary use are provided with balaneed outlet valvesfor the reaeon that they can be easily inoved by the available pressureivithin the trap`r vvhieh as a rule is of very low pressure and henceliable trap or connected with the i. f i i, I: te aim nnpoesible in e' rminet, edinient. as euer aan@ It ai und if, self eleaning.

im netter @vlinder T ;i hing :1&1 the oil under ne ali parte. :indtthefn 1i ehy sed eirenit pre- L, mixing;- vvitli it. At iii taie pre, ureiinid ie erlie i over again there no and erlaintv ,-peration is a-Iiretl. vla ritme it will abo he seen. by the enipiejnu'n iii a imap.vztla a governor for eentroilineV the worhine' ltuid pressure for opeialineT the motors1 aid tiuid pressure can he varinl to suit anvConditionl to which the device may be employed` In Fie'. 1 will he feandillustrated an eX ample of niv 1" 'teni tor drainage of steam enit andEn partfnlar instance the inventiva; .ippned to `mentnn pans used innine. in which Q5 represent a vaennin paw` 2G, QG are the termiot' a`vries Ut i we receiving the Water ot' fondemat'en front the Steam eoilsWithin the vaeuuin pans. The terminals QG, Q6 are ferent inlets (eeeFig. iff) of the ditl'erent tra p reeeptaeles Vl. l7 each trap beinglpreferihl v onlv '"eisneeted with one of the (toilej in ,e vai'unnipane. The water outlet 3 of larli trai. ia eonneezed -v a .separate pipe21,

indieatef orepeeled of tivo dots and a dafh. to ap Water return pipe 2.ivhieli iezids a i etiving tank :28. The

i an oii pnrnp which is proemnnion torrn ot' governor to ref z-ziire ofdischarge into the numeral vided with eertrol the oil deliverv iipee if.21:2. indieated in Solid lines` having" iii-arches and leading t0 thedifferent. valve chests 9. of the Series of traps 1. vl`he return oilpipes Q3, 23, indicated by line eoniiioeed of dots and daehes, leadtroni the exhaust of the motor cylinderr; T of the different'traps, 1,to a common oil retin-n pipe 30 leadingT to a reservoir 31 suction endof the oil pump 29.

The :operation of thearrangement or sys-` water of -condensation of thatparticular trap passes by its own pipe connection 21 to a common returnpipe 27 and lthence -to the receiving tank 28, from Which`it is pumpedby any suitable means to a boiler to be converted into steam and againsupplied to the coils of the vacuum pans.

During the foregoing operation the oil under pressure in the pipe 22which actuated the outlet slide valve 4 of the particular trap 1 justreferred to is on-ret-urn of the oat 13 to its normal position,exhausted by the operation of ythe oscillating valve 10 ,into itsparticular oil return pipe 23, thence 25 into pipe 30 leading to areservoir 31, from whence it is taken up by the pump 29 with"A anysuitable governor, and again forced un- Ider controlled and regulatedpressure into any one of. the pipes 22, to .be again used to 30 act'uateany` one of the outlet valves 4 of the series of traps 1.

From the foregoing disclosure of'my arrangement and pump, it Will beseen that the operation of each trap'is independent of any other andthat the oil and-'Water in the system are all inclosed, and no lossesare effected through heat, evaporation, or any other causes, the manymotor cylinder valves are 40 automatically lubricated, and no leakage ofsteam or Waten is `permitted through the Water outlet Nalves.

What I claim zl. A steam trap comprising a receptacle 4,5 having aninlet and an outlet, a valve controlling said outlet, a float in saidreceptacle, a motor cylinder exterior of said receptacle and receivingmotive fluid indeg `pendently of said trap, a valvefor said moforcylinder, a piston 1n said cylinder, an'

exterior rod connecting said piston with the outlet valve, and a leverexterior of said receptacle connected With said float and v valve forthe motor cylinder for controlling said motiveA fluid into said cylinderand operation of the outlet valvet 2. A steam trap comprising areceptacle having an inlet and an outlet, a slide valve controlling saidoutlet and forced against its scat by the pressure and Huid within thereceptacle, a fioat in said receptacle, a nio tor cylinder exterior ofsai-:l receptacle and receiving and exhausting motive fluidindependently of said trap, a valve for said nio- Icontrolling itivefluid l-intofthe motor'cylinder and operation of the outlet valve.

vagainst its seat by the of traps with their connectionsv ttor cylinder,'a piston in said cylinder, a rod exterior 'of said receptacleconnecting said slide valve with the piston, and a lever exvteriorfofthe `receptacle connected with said ifloat .and 'valve Afor the motorcylinder for the inlet and exhaust of the mo- 8. A steam trap comprisinga receptacle having an inlet and an outlet, a vertical slidevalve-controllingsaid outlet and forced pressure and fluid Within-thereceptacle, a float in said receptacle, avmotor cylinder exterior of andindependent of said .receptacle and having combined motive andlubricating fluid inlet and outlet, a valve for said motor cylinder` apiston in said cylinder, a rod exterior of said receptacle connectingsaid slide valve with the piston, and a lever exterior of the receptacleconnected with said float and valve for the motor cylinder forcontrolling the inlet and exhaust of the mo-tive fluid into the motorcylinder and operation of the outlet valve.

4. A system for the automatic draining of Water of condensation from aseries of heatingcoils comprising a series of traps, each of said trapshaving a Water inlet and outlet and a valve controlling said outlet, amotor cylinder for each trap for actuating the outlet valve and having afiuid pressure inlet and exhaust independent of the trap and pressureWithin the same, a series of pipes each of which forms a connect-ionbetween the outlet of a heating coil and the inlet ofv the trap for saidcoil, a series of drain pipes so distributed that the outlet of each ofthe traps is connected with a, receiving orstorage tank by .one of saiddrain pipes, a source of combined motive and lubricating Huid supply, a`fluid pressure pump having its inlet connected with said fluid supply, aseries of fluid .pressure pipes so rranged that the inlet of each of themot-or cylinders is connected by one of said pipes with the exhaust ofthe pressure pump, anda series of pipes so disposed as to connect theexhaust of each of they motor cylinders with the source of motive" fluidsupply.

5. A system for the automatic draining of water of condensation from aseries of heating coils comprising a storage tank, a series of traps,each of said traps having a Water inlet and outlet a'nd a valvecontrolling said outlet, a motor cylinder for each trap for actuatingthe outlet valve and having a fluid pressure inlet and exhaustindependent of the trap and pressure within the same, a series of pipeseach of which forms a connection between the outlet of a heating coiland the inlet of the trap for said coil, a series of drain pipes sodistributed that the outlet of each of the traps is connected with astorage tank by one of said dran pipes, a source of eomblned motlve.andvlubrlcatlng iuld supply, a Huld pressure pump havmg its inletconnected with said Huid supply, :tv

series or" i'nid pressure pipes so arranged that the inlet of each ofthemotor cylinders is connected by one of said ppes with the exhaust of thepressure pump, and a series of pipes so disposed as to connectthe eX-haust'of each of the motor cylinders with 10 the source of the motiveHuid.

In testimony whereof I ax my signature in presence of two witnesses..

PAUL H. GRIMM.

Witnesses:

C. H. EASTMENT, SAMUEL GOLDBERG.

